mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
dfe91fcd08
* numeric.c (flo_round, int_round): support round-to-nearest-even semantics of IEEE 754 to match sprintf behavior, and add `half:` optional keyword argument for the old behavior. [ruby-core:76273] [Bug #12548] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
162 lines
6.1 KiB
Ruby
162 lines
6.1 KiB
Ruby
# frozen_string_literal: false
|
|
require 'test/unit'
|
|
|
|
# mathn redefines too much. It must be isolated to child processes.
|
|
class TestMathn < Test::Unit::TestCase
|
|
def test_power
|
|
stderr = $VERBOSE ? ["lib/mathn.rb is deprecated"] : []
|
|
assert_in_out_err ['-r', 'mathn', '-e', 'a=1**2;!a'], "", [], stderr, '[ruby-core:25740]'
|
|
assert_in_out_err ['-r', 'mathn', '-e', 'a=(1 << 126)**2;!a'], "", [], stderr, '[ruby-core:25740]'
|
|
assert_in_out_err ['-r', 'mathn/complex', '-e', 'a=Complex(0,1)**4;!a'], "", [], [], '[ruby-core:44170]'
|
|
assert_in_out_err ['-r', 'mathn/complex', '-e', 'a=Complex(0,1)**5;!a'], "", [], [], '[ruby-core:44170]'
|
|
end
|
|
|
|
def test_quo
|
|
stderr = $VERBOSE ? ["lib/mathn.rb is deprecated"] : []
|
|
assert_in_out_err ['-r', 'mathn'], <<-EOS, %w(OK), stderr, '[ruby-core:41575]'
|
|
1.quo(2); puts :OK
|
|
EOS
|
|
end
|
|
|
|
def test_floor
|
|
assert_separately(%w[-rmathn], <<-EOS, ignore_stderr: true)
|
|
assert_equal( 2, ( 13/5).floor)
|
|
assert_equal( 2, ( 5/2).floor)
|
|
assert_equal( 2, ( 12/5).floor)
|
|
assert_equal(-3, (-12/5).floor)
|
|
assert_equal(-3, ( -5/2).floor)
|
|
assert_equal(-3, (-13/5).floor)
|
|
|
|
assert_equal( 2, ( 13/5).floor(0))
|
|
assert_equal( 2, ( 5/2).floor(0))
|
|
assert_equal( 2, ( 12/5).floor(0))
|
|
assert_equal(-3, (-12/5).floor(0))
|
|
assert_equal(-3, ( -5/2).floor(0))
|
|
assert_equal(-3, (-13/5).floor(0))
|
|
|
|
assert_equal(( 13/5), ( 13/5).floor(2))
|
|
assert_equal(( 5/2), ( 5/2).floor(2))
|
|
assert_equal(( 12/5), ( 12/5).floor(2))
|
|
assert_equal((-12/5), (-12/5).floor(2))
|
|
assert_equal(( -5/2), ( -5/2).floor(2))
|
|
assert_equal((-13/5), (-13/5).floor(2))
|
|
EOS
|
|
end
|
|
|
|
def test_ceil
|
|
assert_separately(%w[-rmathn], <<-EOS, ignore_stderr: true)
|
|
assert_equal( 3, ( 13/5).ceil)
|
|
assert_equal( 3, ( 5/2).ceil)
|
|
assert_equal( 3, ( 12/5).ceil)
|
|
assert_equal(-2, (-12/5).ceil)
|
|
assert_equal(-2, ( -5/2).ceil)
|
|
assert_equal(-2, (-13/5).ceil)
|
|
|
|
assert_equal( 3, ( 13/5).ceil(0))
|
|
assert_equal( 3, ( 5/2).ceil(0))
|
|
assert_equal( 3, ( 12/5).ceil(0))
|
|
assert_equal(-2, (-12/5).ceil(0))
|
|
assert_equal(-2, ( -5/2).ceil(0))
|
|
assert_equal(-2, (-13/5).ceil(0))
|
|
|
|
assert_equal(( 13/5), ( 13/5).ceil(2))
|
|
assert_equal(( 5/2), ( 5/2).ceil(2))
|
|
assert_equal(( 12/5), ( 12/5).ceil(2))
|
|
assert_equal((-12/5), (-12/5).ceil(2))
|
|
assert_equal(( -5/2), ( -5/2).ceil(2))
|
|
assert_equal((-13/5), (-13/5).ceil(2))
|
|
EOS
|
|
end
|
|
|
|
def test_truncate
|
|
assert_separately(%w[-rmathn], <<-EOS, ignore_stderr: true)
|
|
assert_equal( 2, ( 13/5).truncate)
|
|
assert_equal( 2, ( 5/2).truncate)
|
|
assert_equal( 2, ( 12/5).truncate)
|
|
assert_equal(-2, (-12/5).truncate)
|
|
assert_equal(-2, ( -5/2).truncate)
|
|
assert_equal(-2, (-13/5).truncate)
|
|
|
|
assert_equal( 2, ( 13/5).truncate(0))
|
|
assert_equal( 2, ( 5/2).truncate(0))
|
|
assert_equal( 2, ( 12/5).truncate(0))
|
|
assert_equal(-2, (-12/5).truncate(0))
|
|
assert_equal(-2, ( -5/2).truncate(0))
|
|
assert_equal(-2, (-13/5).truncate(0))
|
|
|
|
assert_equal(( 13/5), ( 13/5).truncate(2))
|
|
assert_equal(( 5/2), ( 5/2).truncate(2))
|
|
assert_equal(( 12/5), ( 12/5).truncate(2))
|
|
assert_equal((-12/5), (-12/5).truncate(2))
|
|
assert_equal(( -5/2), ( -5/2).truncate(2))
|
|
assert_equal((-13/5), (-13/5).truncate(2))
|
|
EOS
|
|
end
|
|
|
|
def test_round
|
|
assert_separately(%w[-rmathn], <<-EOS, ignore_stderr: true)
|
|
assert_equal( 3, ( 13/5).round)
|
|
assert_equal( 2, ( 5/2).round)
|
|
assert_equal( 2, ( 12/5).round)
|
|
assert_equal(-2, (-12/5).round)
|
|
assert_equal(-2, ( -5/2).round)
|
|
assert_equal(-3, (-13/5).round)
|
|
|
|
assert_equal( 3, ( 13/5).round(0))
|
|
assert_equal( 2, ( 5/2).round(0))
|
|
assert_equal( 2, ( 12/5).round(0))
|
|
assert_equal(-2, (-12/5).round(0))
|
|
assert_equal(-2, ( -5/2).round(0))
|
|
assert_equal(-3, (-13/5).round(0))
|
|
|
|
assert_equal(( 13/5), ( 13/5).round(2))
|
|
assert_equal(( 5/2), ( 5/2).round(2))
|
|
assert_equal(( 12/5), ( 12/5).round(2))
|
|
assert_equal((-12/5), (-12/5).round(2))
|
|
assert_equal(( -5/2), ( -5/2).round(2))
|
|
assert_equal((-13/5), (-13/5).round(2))
|
|
|
|
assert_equal( 3, ( 13/5).round(half: :even))
|
|
assert_equal( 2, ( 5/2).round(half: :even))
|
|
assert_equal( 2, ( 12/5).round(half: :even))
|
|
assert_equal(-2, (-12/5).round(half: :even))
|
|
assert_equal(-2, ( -5/2).round(half: :even))
|
|
assert_equal(-3, (-13/5).round(half: :even))
|
|
|
|
assert_equal( 3, ( 13/5).round(0, half: :even))
|
|
assert_equal( 2, ( 5/2).round(0, half: :even))
|
|
assert_equal( 2, ( 12/5).round(0, half: :even))
|
|
assert_equal(-2, (-12/5).round(0, half: :even))
|
|
assert_equal(-2, ( -5/2).round(0, half: :even))
|
|
assert_equal(-3, (-13/5).round(0, half: :even))
|
|
|
|
assert_equal(( 13/5), ( 13/5).round(2, half: :even))
|
|
assert_equal(( 5/2), ( 5/2).round(2, half: :even))
|
|
assert_equal(( 12/5), ( 12/5).round(2, half: :even))
|
|
assert_equal((-12/5), (-12/5).round(2, half: :even))
|
|
assert_equal(( -5/2), ( -5/2).round(2, half: :even))
|
|
assert_equal((-13/5), (-13/5).round(2, half: :even))
|
|
|
|
assert_equal( 3, ( 13/5).round(half: :up))
|
|
assert_equal( 3, ( 5/2).round(half: :up))
|
|
assert_equal( 2, ( 12/5).round(half: :up))
|
|
assert_equal(-2, (-12/5).round(half: :up))
|
|
assert_equal(-3, ( -5/2).round(half: :up))
|
|
assert_equal(-3, (-13/5).round(half: :up))
|
|
|
|
assert_equal( 3, ( 13/5).round(0, half: :up))
|
|
assert_equal( 3, ( 5/2).round(0, half: :up))
|
|
assert_equal( 2, ( 12/5).round(0, half: :up))
|
|
assert_equal(-2, (-12/5).round(0, half: :up))
|
|
assert_equal(-3, ( -5/2).round(0, half: :up))
|
|
assert_equal(-3, (-13/5).round(0, half: :up))
|
|
|
|
assert_equal(( 13/5), ( 13/5).round(2, half: :up))
|
|
assert_equal(( 5/2), ( 5/2).round(2, half: :up))
|
|
assert_equal(( 12/5), ( 12/5).round(2, half: :up))
|
|
assert_equal((-12/5), (-12/5).round(2, half: :up))
|
|
assert_equal(( -5/2), ( -5/2).round(2, half: :up))
|
|
assert_equal((-13/5), (-13/5).round(2, half: :up))
|
|
EOS
|
|
end
|
|
end
|